General view of a female employee analyzing unidentified substances in the Bureau of Chemistry's Pharmacognosy Laboratory. Part of the U.S. Department of Agriculture, the Pharmacognosy Laboratory supervised the…

Letter from Phoebe Waterman Haas (1882-1967) to Otto Haas (1872-1960).

Phoebe Waterman Haas was one of the first American women to earn her doctorate in astronomy in 1913. After graduating, she was appointed as an…

Letter from Phoebe Waterman Haas (1882-1967) to Otto Haas (1872-1960).

Phoebe Waterman Haas was one of the first American women to earn her doctorate in astronomy in 1913. After graduating, she was appointed as an…

Letter from Phoebe Waterman Haas (1882-1967) to Otto Haas (1872-1960).

Phoebe Waterman Haas was one of the first American women to earn her doctorate in astronomy in 1913. After graduating, she was appointed as an…

Letter from Phoebe Waterman Haas (1882-1967) to Otto Haas (1872-1960).

Phoebe Waterman Haas was one of the first American women to earn her doctorate in astronomy in 1913. After graduating, she was appointed as an…

Letter from Phoebe Waterman Haas (1882-1967) to Otto Haas (1872-1960).

Phoebe Waterman Haas was one of the first American women to earn her doctorate in astronomy in 1913. After graduating, she was appointed as an…

Letter from Phoebe Waterman Haas (1882-1967) to Otto Haas (1872-1960).

Phoebe Waterman Haas was one of the first American women to earn her doctorate in astronomy in 1913. After graduating, she was appointed as an…

Letter from Phoebe Waterman Haas (1882-1967) to Otto Haas (1872-1960).

Phoebe Waterman Haas was one of the first American women to earn her doctorate in astronomy in 1913. After graduating, she was appointed as an…

Figure 27 from the 1915 volume, The Rare Earth Industry depicting the "flashing" room of the Edison and Swan Electric Light Company. The illustration depicts scientists preparing filaments for incandescent electric glow…

The individuals depicted in the photograph are identified as follows:

Standing left to right: William Nash; William Bay; J.P. Holmes; Perley Wayne; A.C. Beckert; Joseph E. LeFerre; Thomas Griswold; Herbert. H. Dow;…

General view of an unidentified female employee operating a machine used to sort time cards at the Hercules Powder Company plant in Kenvil, New Jersey. Per an article in the August 1919 edition of the Hercules Mixer,…

Four images from a capsule factory of workers and machinery; a capsule press, women sorting finished capsules, coating plates with gelatin, and packing elastic filled capsules.

Created by Eli Lilly & Company, this…

Glass tube with a collecting reservoir that opens into a funnel (or breast piece). Round red rubber bulb attached to one end of the glass. Stamp in black ink on red bulb reads "Ingram's/'Omega'/London."

A type of early intrauterine device (IUD) also known as a cervicouterine device or pessary. Curved disk with long coil stem attached to plate of disk. Coil opens into a wishbone shape with two arms. Arms are held…

Glass tube with a collecting reservoir that opens into a funnel (or breast piece). Round black rubber pump attached to one end of the glass.

General view of an unidentified woman, presumably a laboratory assistant, posed near a work bench with assorted scientific apparatus and glassware visible in the background. While the setting of this photograph is also…

General view of an unidentified woman, presumably a laboratory assistant, posed near a work bench with assorted scientific apparatus and glassware visible in the background. While the setting of this photograph is also…

General view of an unidentified woman, presumably a laboratory assistant, posed near a work bench with assorted scientific apparatus and glassware visible in the background. Notably, the photograph is printed as a…

General view of an unidentified woman, presumably a laboratory assistant, posed near a work bench with assorted scientific apparatus and glassware visible in the background. While the setting of this photograph is also…

Album containing 52 black and white photographs documenting various aspects of the production process at the Welsbach Gas Light Company site located along the Delaware River in Gloucester City, New Jersey. From 1888 to…

Image caption reads "girls sorting out imperfect grains of smokeless powder." Inset photograph caption states "smokeless powder manufacture under difficulties—during the severe winter of 1917-18; great banks of snow are…

Kotex sanitary pad advertisement from a November 1922 issue of Ladies' Home Journal. The ad asserts that disposable Kotex pads are inexpensive, comfortable, hygienic, and safe.

Kotex ("cotton texture") disposable pads…

Group photograph of the International Chemical Reunion Utrecht (ICRU). ICRU was organized by Ernst Cohen (1863-1944) as a way to unite scientists from previously warring nations.

Front Row: Tendeloo, van der Burg, de…

General view of an unidentified female laboratory technician preparing a water sample for analysis at the Dearborn Chemical Company's 35th Street Laboratory. Founded in 1887, the Dearborn Chemical Company was a…

Textbook for first and second-year undergraduate students of applied chemistry. Author Dr. Jean Bogert (1888-1970) states in her preface that this work is set apart from other chemical textbooks due to its emphasis on…